TOPOGRAPHY. 13 



3. The Bay map, covering an area of sixty-six by ninety 

 miles, extending from Napa to Gilroy, and from Livermore 

 Pass to Olema, on a scale of two miles to an inch, has been 

 published. It shows the latest municipal lines, the town plats, 

 the surroundings, and the completed railroads, in addition to 

 the topography and the depth of the waters. 



4. The Yosemite region, covering an area of forty by fifty- 

 eight miles, on a scale of two miles to an inch. Published. 



5. The Yosemite grant, on a scale of two inches to a mile. 

 Published. 



6. California and Nevada, on a scale of eighteen miles to 

 an inch. Published. 



7. A geological map of the gravel range across Nevada 

 and Placer Counties, to be done probably in three months ; 

 and a geological map of the peninsula of San Francisco. Not 

 yet published. 



